We supply high-quality carbon steel square bars in grades including Q235, 45#, and S45C, with sizes ranging from 10×10mm to 150×150mm and customizable lengths (typically 2-6m). Featuring excellent mechanical properties and machinability, our bars are ideal for machinery manufacturing, mold processing, and structural applications. Surface treatments (grinding, turning) and custom sizes available upon request.

Manufactured using precision hot-rolling and cold-drawing processes, our fully automated production line incorporates straightening machines and real-time dimension monitoring to ensure ±0.1mm side tolerance and straightness within ≤0.2mm/m. The system is designed to reliably support both standard specifications and custom small-batch production requirements.

In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.

Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.